Noise Filter (Advanced); Max Depth (Advanced); Water Type; Transducer Select - Humminbird 787C2 Operation Manual

531476-1_A - 787c2_Eng.qxd 11/22/2005
Noise Filter
(Advanced)
Noise Filter adjusts the sonar Noise Filter to limit interference on the display from sources
such as your boat engine, turbulence, or other sonar devices. The Noise Filter menu choice
is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).
NOTE: The Off setting removes all filtering; Low, Medium and High settings add progressive
filtering of the sonar returns. In some deep water situations, the High setting may actually
hinder your unit's ability to find the bottom.
To change the Noise Filter setting:
1. Make sure you are in Advanced User Mode, then highlight Noise Filter on the
Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Noise Filter
setting. (Off, Low, Medium, High1, High2, High3, Default = Low)
Max Depth
(Advanced)
Max Depth adjusts the maximum depth of operation. The performance of your 700
Series™ Fishing System can be tuned to the maximum depth you will be fishing in by
setting the Max Depth. When a maximum depth is set, your 700 Series™ Fishing System
will not attempt to acquire sonar data below that depth, thus increasing overall
performance. When Max Depth is set to Auto, the 700 Series™ Fishing System will
acquire bottom readings as needed (within the capacity of the unit). If the bottom is
deeper than the Max Depth setting, the digital depth readout will flash, indicating that
the 700 Series™ Fishing System cannot locate the bottom. The Max Depth menu choice
is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).
To change the Max Depth setting:
1. Make sure you are in Advanced User Mode, then highlight Max Depth on the
Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Max Depth
setting. (AUTO, 10 to 1500 feet, 3 to 500 meters [International Models only],
Default = AUTO)
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Water Type

(Advanced)
Water Type configures your unit for operation in fresh or salt water. The Water Type
menu choice is available when User Mode is set to Advanced (see Setup Menu Tab: User
Mode).
NOTE: In salt water, what would be considered a large fish might be 2 to 10 times bigger than
a large fish in fresh water (depending on the type of fish you are seeking). The salt water
setting allows for a greater range in fish size adjustment to account for this. Also, make sure
that the Water Type is set accurately, especially in salt water, as this affects the accuracy of
deep water depth readings.
To change the Water Type setting:
1. Make sure you are in Advanced User Mode, then highlight Water Type on the
Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Water Type
setting. (Fresh, Salt, Default = Fresh)

Transducer Select

Transducer Select allows you to select which
transducer you want to use (the 700 Series™ Fishing System comes with a DualBeam
PLUS™ transducer, and also supports the optional-purchase QuadraBeam™ and
WideSide® transducers.)
To change the selected Transducer:
1. Highlight Transducer Select on the Sonar Main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the transducer
selected. (DualBeam, QuadBeam, WideSide®, Default = DualBeam)
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